Wijayanto, Dian and Kurohman, Faik and Nugroho, Ristiawan Agung (2023) The effect of garlic supplementation on the growth, survival and RCR in cultured TGGG hybrid grouper (♀ tiger grouper × ♂ giant grouper). Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society, 16 (5). pp. 2554-2561. ISSN 1844-8143

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Abstract

This research investigated the impact of supplementing fish feed with garlic on the growth,
survival, feed efficiency and profitability in TGGG hybrid grouper culture reared in low salinity media.
This research was conducted for 40 days using fish fingerlings with an average weight of 4.34 g (±0.14
g) reared in tanks with water volume 0.4 m3 containing 28 fish per tank. The experiment consisted of 3
treatments and 3 repetitions; treatment A with 0% garlic supplementation, treatment B with 1% garlic
supplementation, and treatment C with 2% garlic supplementation. Multiple parameters were assessed;
biomass growth (WGR), specific growth rate (SGR), survival rate (SR), feed conversion ratio (FCR), and
revenue cost ratio (RCR). The results showed that treating garlic in feed with the right dosage could
improve the performance of TGGG hybrid grouper culture. Treatment A demonstrated superior growth
(WGR and SGR) in comparison to treatments B and C. Treatment B exhibited the most favorable
outcomes in terms of FCR and RCR. The results of treatment optimization modelling show that the
optimal doses are 0.30% for SGR, 0.35% for WGR, 0.59% for FCR, and 0.65% for RCR.

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